Solar panel



FIG. 1 is a top plan view of a solar panel showing our new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a side elevation view thereof; and,

FIG. 6 is a side elevation view thereof, opposite that of FIG. 5. 

CLAIM The ornamental design for solar panel, as shown and described. 